Esters and mixtures thereof with organotin compounds useful as polymer stabilizers
US3933744A · kind A · utility
2Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1975 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | Jun 16, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/372
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An ester, which is a costabiliser of mono ordi organotin stabilisers for halogen containing resins, is of formula ##EQU1## wherein x and y are 1-6, R.sub.4 and R.sub.9 are alkyl, alkenyl, cycloalkyl or optionally substituted aromatic aralkyl or aralkenyl hydrocarbyl group, R.sub.3 and R.sub.5 are as R.sub.4 or R.sub.9 or is hydrogen or R.sub.3 and R.sub.5 form a cycloalkyl ring. The organotin stabilisers are carboxylates, mercapto carboxylates, carboxylate ester from diacids, sulphides, mercaptides or thiostannoic acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.